245900 has 18 divisors (see below), whose sum is σ = 533820. Its totient is φ = 98320.

The previous prime is 245899. The next prime is 245909. The reversal of 245900 is 9542.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (245909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1130 + ... + 1329.

2²⁴⁵⁹⁰⁰ is an apocalyptic number.

245900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

245900 is an abundant number, since it is smaller than the sum of its proper divisors (287920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245900 is a wasteful number, since it uses less digits than its factorization.

245900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2473 (or 2466 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 245900 is about 495.8830507287. The cubic root of 245900 is about 62.6497741300.

The spelling of 245900 in words is "two hundred forty-five thousand, nine hundred".